code: def __str__(self):
      return f"Error(code={self.code}, message={self.message})"
  
file_path: milvus/tests/python_client/utils/api_request.py
imports: import traceback
  import copy
  import os
  from utils.util_log import test_log
label_desc: Use image node_id 2 for calling the Error obj's underlying member method code with example usage: obj.__str__() and returns: str, self, str, self, str